Employee Retention Rate: Formula, Benchmarks, and How to Improve It

At my second company, I thought retention was fine because we kept hiring. I was wrong, and if you judge your own team by headcount, you could be too: this guide shows you how to calculate the number that tells you who is actually staying, and what to do when it slips.

One year we started with 18 people, ended with 22, and I told myself "we are growing." When I finally ran the numbers, 6 people had left during the year and we had hired 10 to replace them and grow. Our retention rate was 67%. A third of the team had turned over, and I had convinced myself it was growth.

That is the mistake most small business owners make: they track headcount instead of retention. Headcount tells you how many people you have. Retention rate tells you how many people chose to stay, and that second number is the one that shows whether your business is a place people want to work.

The sections below cover what employee retention rate means, the formula to calculate it (with worked examples for small businesses), what a good retention rate looks like across different industries, how retention rate differs from turnover rate, and practical strategies for improving yours at a small business where you do not have a dedicated HR department.

What Is Employee Retention Rate?

Employee retention rate is the percentage of employees who remain at an organization over a defined period of time. It measures workforce stability: how well you keep the people you hire. It is the inverse of turnover rate. If your retention rate is 85%, your turnover rate is 15%.

The formula subtracts new hires for a reason. Without the subtraction, a company that started with 10 people, lost 5, and hired 8 would show an "end count" of 13, which looks like growth. But the retention rate is ((13 - 8) / 10) x 100 = 50%: half the original team left, and the new hires masked the departures. This is exactly the mistake I made at my second company, and it is why retention rate is a more honest metric than headcount growth.

Retention rate does three jobs in HR. First, it is a diagnostic metric: a declining retention rate signals that something in the organization (compensation, management, culture, or onboarding) needs attention. Second, it is a benchmarking tool: comparing your retention rate to industry averages shows whether your workforce stability is competitive.

Third, retention rate is a leading indicator of financial health. Every departure you avoid saves a round of recruitment costs and spares productivity, client relationships, and team cohesion another hit. For small businesses, this financial link is the most compelling, because each departure costs real money and the proportional cost is higher at small scale.

The Bureau of Labor Statistics JOLTS data (from the Job Openings and Labor Turnover Survey) tracks quits, layoffs, and total separations by industry every month. These numbers are the raw material behind retention benchmarks, and they help you put your own retention rate in context: is 85% strong for your industry, or does it signal a problem? The benchmarks section below uses BLS data to show what normal churn looks like in each major industry.

Retention Rate in Context: What the Number Actually Tells You

A retention rate by itself is a number. The insight comes from context. An 88% annual retention rate could mean three very different things depending on who left. If the departures were all entry-level roles that are easy to fill, 88% might be perfectly healthy. If they were two senior engineers who held critical institutional knowledge, 88% might represent a crisis. If they were involuntary terminations of underperformers, 88% might reflect healthy workforce management.

This is why experienced founders track the story behind each departure alongside the rate. A simple notes column in your tracking spreadsheet, recording who left, when, why, and what the impact was, transforms a metric into a management tool.

What Retention Rate Is Not

Two common confusions. First, employee retention rate is not the same as "retention ratio." Retention ratio is a corporate finance term that measures the proportion of net income a company retains instead of paying as dividends (also called the plowback ratio). These are completely different metrics from different fields. If you see "retention ratio" next to dividends and earnings, that is finance, not HR.

Second, employee retention rate is not the same as "net retention rate." Net retention rate (NRR) is a SaaS (software-as-a-service) business metric that measures net revenue retention from existing customers, including upsells, downgrades, and churn. It is used by CFOs, investors, and customer success teams. If you are looking for the HR metric, use "employee retention rate." This guide focuses exclusively on the HR meaning.

Why Retention Rate Matters for Small Businesses

Retention rate matters at every company size, but the impact is disproportionately larger at small businesses. When an enterprise loses one employee, the rest of the organization keeps working. When a small business loses one employee, everyone who stays absorbs a share of the work that person used to do. The cost of turnover at a small business covers recruitment and onboarding expenses, plus the proportionally larger disruption to the remaining team.

Beyond the direct cost, retention rate signals three things that matter to small business owners. First, it predicts operational stability: a falling retention rate means more disruption, more knowledge loss, and more time spent training replacements instead of serving customers. Second, it reflects management quality: segmenting retention by team reveals whether you have a company problem or a manager problem.

Third, retention predicts culture health, because most departures happen for reasons you could have fixed. According to the Work Institute 2025 Retention Report (its 9th annual), preventable reasons accounted for 76.3% of 2024 exits, based on 14,215 exit interviews from that year.

Career development led those preventable reasons at 18.9% of exits, and management behavior reached a six-year high at 9.7%. Both sit inside the founder's control at a small business.

According to the SHRM 2025 benchmarking reports, the average cost per hire is $5,475 for nonexecutive roles. Every departure triggers that cost again. A retention rate improvement from 80% to 90% at a small business can mean preventing two departures a year, saving roughly $11,000 in hiring costs alone, before the far larger costs of lost productivity and disrupted workflows.

The Hidden Costs Beyond Recruitment

Recruitment cost is only the visible part of what a departure costs, and the hidden costs are larger. First, there is the productivity gap: a replacement spends months learning the job before matching the output of the person who left, and the team runs below capacity for the whole of that ramp.

The second hidden cost is knowledge loss: processes the departing employee knew but never documented, client relationship context that lives in their head, and institutional memory that walks out the door with them. The third is the morale impact: remaining employees absorb extra work, uncertainty about the future grows, and if several people leave in a short window, a "sinking ship" narrative can take hold even when the business is healthy.

At a small business, all of these costs are amplified. The knowledge loss is proportionally larger because fewer people shared it, the productivity gap affects a larger share of the team, and the morale impact is more visible because everyone knows everyone. For a small business, retention rate is a business continuity metric as much as an HR one.

The Employee Retention Rate Formula

The standard formula, the one HR teams and benchmarking reports use, is:

You take new hires out because retention is about the people you started with. Leave them in and you are measuring headcount change instead. A company that loses 10 people and hires 15 has grown, but its retention rate reflects the 10 departures, not the 15 new arrivals.

This formula works for any time period: monthly, quarterly, or annually. The only requirement is consistency. If you calculate retention quarterly, use the same quarter-start and quarter-end dates every time. If annually, use the same fiscal year or calendar year. Mixing periods makes your data incomparable.

A Note on What Counts as a Departure

The standard retention rate formula counts all departures: voluntary quits, involuntary terminations, retirements, and end-of-contract separations. Some organizations calculate separate retention rates for voluntary and involuntary turnover, because a high involuntary rate (layoffs, performance terminations) tells a different story than a high voluntary rate (employees choosing to leave).

At a small business, that split matters. A founder who fires two underperformers and a founder who loses two top performers to competitors are in very different situations, even if both show the same retention number.

Monthly vs Quarterly vs Annual: Which Period to Use

The right period depends on your company size and industry, and for most small businesses it is quarterly: frequent enough to catch problems early, and long enough to smooth out some of the month-to-month noise. Monthly calculation suits high-turnover industries (restaurants, retail, seasonal businesses), where the workforce changes fast enough that quarterly data would miss trends.

Annual is best for reporting and benchmarking but too slow for operational decisions: a departure in January is not actionable intelligence when you calculate retention in December. That is why I recommend calculating quarterly and reviewing annually. The quarterly number tells you what is happening now, and the annual number tells you whether your trajectory is improving. You need both.

How to Calculate Employee Retention Rate: Step by Step

This walkthrough is designed for small business owners who track employees in a spreadsheet, an HRIS (human resources information system), or even a paper list. You do not need HR software to calculate retention rate. You need three numbers and 60 seconds.

If you use an HRIS with employee profiles that include hire dates and termination dates, the system can calculate retention automatically. If you are working from a spreadsheet, build one tab with columns for employee name, hire date, departure date (blank if still employed), and employment status. Filter by the period you are measuring, count the three inputs, and apply the formula.

Worked Examples for Small Businesses

Abstract formulas are less useful than real scenarios. Here are three worked examples at small business scale, each illustrating a different situation.

The first example (91.7%) shows a healthy, stable team. One departure in a quarter is normal; what matters is whether it repeats in the next one. The second example (88%) shows a growing company with moderate turnover. Three departures out of 25 is manageable but worth monitoring: are the departures concentrated in one team or one tenure band?

The third example (66.7%) is a red flag. Fifteen departures from a 45-person company in one year means a third of the team turned over. At the Gallup range of one-half to two times salary, and an average salary of $60,000, that year of churn costs somewhere between $450,000 and $1.8 million, on top of the operational disruption nobody puts a number on.

Common Calculation Mistakes

Three mistakes appear repeatedly when small business owners calculate retention for the first time. The first mistake is forgetting to subtract new hires. If you started with 20, hired 5, and ended with 22, your retention rate is not (22/20) x 100 = 110%. It is ((22 - 5) / 20) x 100 = 85%. The 110% number is mathematically impossible for a retention rate and always indicates the formula was applied incorrectly.

The second mistake is inconsistent employee definitions. If you count contractors in the start-of-period number but not in the end-of-period number (because a contract ended), you will undercount retention. Define who counts before you calculate: full-time and part-time permanent employees. Exclude contractors, temps, and seasonal workers unless you track them as a separate category.

The third mistake is looking at a single quarter in isolation. On a small team, one or two departures swing the quarterly number hard, so a single bad quarter can look alarming even when the annual trend is healthy. Always review quarterly numbers against the trailing four quarters: a dip in Q2 that recovers in Q3 is different from a decline that persists across three quarters.

Excel Shortcut for Tracking Retention

If you are tracking retention in a spreadsheet (which is where most small businesses should start), here is the minimum viable setup. Create one sheet with four columns: Period (Q1, Q2, and so on, with the year), Start Count, New Hires, End Count. Add a fifth column with the formula =((D2-C2)/B2)*100, which gives you the retention rate for each period.

Add a sixth column for notes: "Sarah left for a competitor in April, David was terminated for performance." The notes column is what turns a number into an actionable insight. Without context, a drop from 92% to 85% is concerning. With context ("two departures were planned retirements"), it is expected.

The 90-Day Retention Rate: A Separate Calculation

In addition to your overall retention rate, calculate 90-day retention separately. This metric tells you how many new hires survive their first 90 days. The formula is simpler: (New hires who stayed past 90 days / Total new hires in the period) x 100.

The reason to split it out is that onboarding is where the damage usually happens. According to Gallup onboarding research, only 12% of employees strongly agree their organization does a great job onboarding new employees, and Gallup also reports that employees who had exceptional onboarding experiences are 2.6 times as likely to be extremely satisfied with their workplace.

The manager is the variable that moves onboarding results. According to Gallup research on onboarding programs, employees are 3.4 times as likely to call their onboarding successful when the manager takes an active role in it. A 90-day retention rate below 80% almost always points to an onboarding problem, not a compensation or culture problem. Fix the first 90 days before investing in broader retention initiatives.

What Is a Good Employee Retention Rate?

The short answer: 90% or above annually is considered strong across most industries. But "good" depends heavily on your industry, company size, and labor market conditions.

A high retention rate means most of the people you started the period with were still there at the end, which usually points to pay that holds up against the market, managers people want to keep working for, and enough room to grow to keep good people interested. A rate below 80% is the mirror image: one in five gone in a year, replacement costs stacking up, and the remaining team absorbing the work.

One important caveat for small businesses: at 15 employees, a single departure drops your retention rate by 6.7 percentage points, and two departures drop it by 13.3 points. Numbers swing harder at small scale, so a "bad quarter" can look catastrophic even when it was just two unfortunate coincidences. Quarterly tracking catches real trends early, and the annual assessment smooths out that noise.

Why 100% Retention Is Not Always the Goal

It sounds counterintuitive, but 100% retention is not always healthy. Some turnover is natural and even beneficial. Employees who are genuinely underperforming, employees whose values no longer align with the organization, and employees who have outgrown the opportunities you can offer: all of these departures make room for people who are a better fit. The goal is not zero departures. The goal is zero preventable departures of people you want to keep.

This distinction matters because founders who chase 100% retention sometimes make expensive mistakes: keeping an underperformer for too long because "retention matters," giving an above-market raise to someone who has already mentally checked out, or tolerating cultural mismatch because the departure would hurt the number. Healthy retention means the people who leave are the right people to leave, and the people who stay are choosing to be there.

Average Employee Retention Rate by Industry

There is no official retention rate by industry, so the benchmark has to be built from the churn side. The Bureau of Labor Statistics JOLTS program publishes monthly total separations and quits rates by industry, and the figures below annualize the 2025 averages: a 3.3% monthly separations rate across the economy works out to about 40% of employment a year.

Read those numbers as churn, not as the inverse of your own retention rate. A 67% separations rate does not mean 33% of a restaurant staff survives the year, because one position can turn over three times in twelve months. The rate tells you what normal looks like in your sector, which is the only thing a national benchmark is good for.

Your sector sets the baseline, but engagement moves your own number within it. According to the Gallup State of the Global Workplace (2025 data), 20% of employees globally are engaged at work, down from the 23% peak of 2022 and 2023.

The Gallup Q12 meta-analysis (11th edition, 2024) found that business units in the top quartile for engagement had turnover 21% below bottom-quartile units in high-turnover organizations, and 51% below in low-turnover ones.

How Small Business Retention Compares to Enterprise

The very smallest workplaces churn a little less than mid-size ones, which shows up as slightly higher retention rates. According to BLS JOLTS size-class estimates (2025), private establishments with 1 to 9 employees averaged separations of about 3.3% of employment a month, against about 3.9% for establishments with 10 to 49 and with 50 to 249 employees.

Enterprise-scale sites do not all churn less. In the same 2025 estimates, establishments with 250 to 999 employees averaged about 3.6% a month and those with 1,000 to 4,999 about 3.3%, level with the smallest workplaces. Only the largest class, 5,000 or more employees, sat far lower, at about 1.5% a month.

One caveat before reading too much into that comparison: BLS notes that these estimates are based on the size of the establishment, meaning a single location, not the size of the firm. A small branch of a national chain lands in the small classes alongside an independent shop with the same headcount.

The smallest teams have a structural edge: at that scale the founder is the manager, so the relationship an enterprise has to manufacture through programs already exists. The flip side of small size is exposure. A small business at 95% retention can absorb the single departure behind that number, but the same company at 80%, with several departures in one year, faces a crisis.

The benchmark that matters most for small business founders is not the national average. It is your own trailing four-quarter trend. If you went from 90% to 87% to 84% to 80%, you have a deteriorating trend that needs investigation, whether or not 80% is "average" for your industry.

An upward trend counts just as much. If you went from 75% to 80% to 85% to 88%, you are improving even though you have not yet reached the "90% is good" threshold. The direction matters more than the absolute number, especially in the first 1 to 2 years of tracking.

Retention Rate vs Turnover Rate

Retention rate and turnover rate are inverse metrics that tell the same story from different angles. Retention measures who stayed. Turnover measures who left. Both are useful, and most organizations track both.

The formulas are not a perfect mirror because they use slightly different denominators (start-of-period headcount for retention, average headcount for turnover). The gap stays small while headcount is stable and widens when you hire heavily. For practical purposes at a small business, if your retention rate is 88%, your turnover rate is approximately 12%.

When to Use Which Metric

Use retention rate when you want to communicate stability: "We retained 92% of our team this year" is a positive message for the team, for candidates, and for clients. Use turnover rate when you want to diagnose problems: "Our voluntary turnover spiked from 8% to 14% this quarter" identifies a trend worth investigating.

Most HR professionals track both, with retention rate as the headline metric and turnover rate broken down by voluntary/involuntary, by department, and by tenure for operational analysis.

Voluntary vs Involuntary: Why It Matters

When you look at your retention rate and it seems low, the next question is always: who left, and why? A company with 82% retention where the 18% who left were all terminated for performance is in a very different situation than a company with 82% retention where all departures were voluntary quits. The first company is actively managing its workforce (and possibly over-correcting). The second company has a retention problem.

Track voluntary and involuntary departures separately. Voluntary turnover (quits) is the number you most want to minimize because it represents people choosing to leave, which means your environment, compensation, management, or growth opportunities are not competitive enough to keep them.

Involuntary turnover (terminations and layoffs) is ideally low but not zero: a healthy organization occasionally parts ways with underperformers. If involuntary turnover is zero for multiple years, it may indicate that leadership is avoiding difficult conversations rather than managing performance.

Employee Retention Metrics Beyond the Rate

The retention rate is one number in a set. The employee retention metrics that actually change decisions at a small business are the ones that tell you who is leaving and when: 90-day retention, first-year retention, high performer retention, average tenure, and what each departure costs you.

Pick three, not seven. At a small business the three that earn their place are 90-day retention for onboarding, retention by manager for management, and voluntary turnover for preventability. The rest become useful once those three are steady. A wider set of HR metrics makes sense later, when someone actually owns reporting.

Cost per departure is the metric that changes conversations. A percentage point of retention is abstract. The dollar cost of replacing the person who just left is not. Run your own numbers through a turnover cost calculator once, and every retention decision after that gets easier to justify.

How to Analyze Retention Data Without a Data Team

Retention data analysis starts with one row per employee, not a dashboard. Name, hire date, last day, manager, role, and whether the departure was voluntary. Six columns. Every segment worth looking at comes out of those, and you can build the sheet in an afternoon.

The most useful view is the hire cohort. Group people by the quarter they joined, then check how many were still there at 90 days, six months, and a year. A cohort that thins at month four points at onboarding or a job that did not match the posting. One that thins at month fourteen points at pay or growth. A company-wide average hides both patterns.

Then respect the sample size. At 20 employees one departure moves the rate five points, so read direction rather than level, and wait for a pattern across three or four quarters before acting on it. Two departures from the same team in one quarter is a signal. One departure in a quiet quarter is usually a person changing their life.

Top Reasons Employees Leave Small Businesses

Seven reasons come up again and again when people leave a small business: a lack of career development, below-market pay, poor management, a better opportunity elsewhere, work-life balance, a lack of recognition, and cultural mismatch. Knowing which of these is behind your own departures matters as much as knowing your retention number.

Recognition shows how much a single factor can matter. According to Gallup recognition research (2024), employees who receive quality recognition are 45% less likely to have turned over after two years. The table below sets recognition alongside the other six reasons, starting with the one that ranks first in exit interviews.

The top row is there for a reason. According to the Work Institute, a lack of career development has been the number one reason employees quit for more than ten consecutive years, and in 2019 one in five people who left for a new employer named it.

Most of this is fixable: Work Institute counts 76.3% of 2024 exits as preventable. You do not need an HR department to give someone a growth opportunity, benchmark their salary, or address a management problem. You need awareness and the willingness to act.

The Manager Variable

If you segment your retention rate by team, you will often find that the company-wide number hides a manager problem. A company with 88% overall retention might have three teams at 95% and one team at 65%. The overall number looks average, but three managers are doing well and one is driving people away.

Company-wide fixes aimed at "improving company culture" rarely solve retention problems for the same reason: the problem is usually specific to one manager, not spread across the organization.

At small businesses where the founder directly manages most of the team, this plays out differently: the founder is the variable. If the founder's management style creates friction (micromanagement, inconsistent communication, unclear expectations, or favoritism), retention will be low across the board, and there is no other team to compare against.

The fix is founder self-awareness. Ask departing employees what they would change, ask current employees what frustrates them, and be willing to adjust your own behavior before blaming market conditions or "people just leave."

The Onboarding Connection

Early departures are onboarding failures, not compensation or culture issues. According to research reported by SHRM, up to 20% of all employee turnover happens within the first 45 days of employment.

The fix is structured onboarding, and it travels well to small scale. In a study by the Wynhurst Group reported by SHRM, newly hired employees who completed a structured onboarding process were 58% more likely to still be at the company three years later.

Structured onboarding programs at a small business do not mean a formal multi-week curriculum. They mean a written Day 1 plan, a named contact for questions, weekly check-ins for the first month, and clear expectations by Day 30.

How to Improve Retention Rate Without an HR Department

To improve retention without an HR department, skip the formal program and focus on six targeted actions that take minimal time and produce measurable results. They fit the situation enterprise-focused retention guides skip: you are the founder, the recruiter, the operations lead, and the only person tracking whether people stay.

The first action (fix onboarding) comes first because it addresses the highest-risk period, the first 90 days. At a small business, structured onboarding comes down to four habits rather than a formal program: a written first-week plan, a named buddy or mentor, a check-in every week for the first month, and a 30-day and 90-day review.

The fifth action (stay interviews) deserves special emphasis because almost nobody at small businesses does it. A stay interview is a 15-minute conversation with a high-performer where you ask two questions: "What keeps you here?" and "What might make you consider leaving?" The answers are more actionable than any engagement survey because they come from the specific person you most want to retain. Conduct them quarterly with your top 5 people.

The Retention Investment Ladder

Not all retention investments are equal. Here is the order that produces the fastest impact for the least cost at a small business.

Notice that three of the top four investments are free: they cost time, not money. That is the advantage small businesses have over large organizations. The founder can personally interview their top 5 employees, personally onboard every new hire, and personally review compensation for every role.

An HR VP at an enterprise cannot do any of those things directly. They have to build programs, hire managers, and deploy software. You just have to show up.

How to Track Retention at a Small Business

Tracking retention at a small business does not require HR software. It requires one spreadsheet, one recurring calendar event, and 30 minutes per quarter.

An HRIS platform can calculate most of these metrics automatically, as long as your employee profiles include hire dates. The advantage of centralized data is consistency: no more reconstructing headcount from memory or old payroll reports. The advantage of a spreadsheet is zero cost and an immediate start.

Software or spreadsheet, either approach works. What does not work is not tracking at all, which is the default at most small businesses. FirstHR centralizes employee profiles, hire dates, and departure records so retention calculation happens automatically rather than relying on quarterly spreadsheet archaeology.

What to Do When the Number Drops

A retention rate that drops below your trailing average by more than 5 percentage points triggers a diagnostic process, not a panic response. Here is the sequence. First, segment by departure type: were the departures voluntary or involuntary? Voluntary departures require a different response than layoffs.

Second, segment by tenure: did long-tenured employees leave (a culture or compensation problem) or did new hires leave (an onboarding or expectation-setting problem)? Third, segment by manager: is the turnover concentrated in one team? If yes, the problem is probably the manager, not the company.

After segmenting, interview. For voluntary departures, conduct a brief exit conversation with one question: "What would you change about working here?" For each answer, ask yourself: is this something I can fix? The answers that repeat across multiple departures are your retention priorities. Do not try to fix everything at once. Pick the most frequently cited issue, address it visibly, and measure whether the next quarter improves.

That whole sequence fits on one page per quarter: the definitions you used, the three inputs and where each came from, the arithmetic, who left, and the single thing you are changing before the next calculation. Filling it takes about twenty minutes and it is what makes this quarter's number comparable to last quarter's.

When to Graduate from Spreadsheets to Software

Spreadsheet tracking works well at a small business. At that scale, you know every person by name, departures are infrequent enough to track manually, and the calculations take 5 minutes per quarter.

Manual tracking starts to break down as the team grows toward mid-size. Hire dates are harder to maintain across multiple sheets, quarterly calculations require chasing down accurate headcount data, and segmenting by team or tenure becomes tedious enough that it stops happening.

The transition point is usually when tracking retention takes more than 30 minutes per quarter, or when you realize you have been using outdated headcount data because someone forgot to update the spreadsheet when a contractor converted to full-time. At that point, centralizing employee data in an employee database that automatically tracks hire dates, departure dates, and headcount changes saves time and produces more accurate numbers.

Regardless of the tool, the principle stays the same: retention rate is only useful if you calculate it consistently, review it in context (who left, why, and from which team), and act on what it reveals. A number without action is just a number. A number that triggers an investigation, leads to a change, and is remeasured the following quarter is a management tool. That is the difference between tracking retention and managing retention.

Frequently Asked Questions